CM Punk's heel turn in 2009 was my favorite turn of all time, because it was so organic and you understood completely where he was coming from. He was never suspended, he was clean, he was talented and a good role model for kids, yet the crowd booed him in favor of a guy who was the polar opposite, and you saw him week by week become frustrated by this. That Jeff could do no wrong and Punk was painted as the villain.
Then that glorious moment after Jeff defends the title successfully, and Punk comes out to congratulate him and says, "You know Jeff, after the last few weeks..." and then
And he completely murders Jeff, and his response to Teddy Long telling him how badly Jeff's injuries were was priceless.
I just love this feud, loved Punk during this, and could talk about it forever. It's even more amazing when you consider Punk "banished him" from the wwe in 2009, and he only just now showed up. Too bad he wasn't around for them to reference it.
I miss feuds where it felt like wrestlers actually hated each other.